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A drunken teenager who ran over and killed his mother in Cornwall has been sent to a young offenders' institution. 19-year-old Lewis Foster, had spent the afternoon drinking and got into an argument with his mother, Deborah Jones, when he returned to his family home in St Austell, in July last year.

Foster, who had a provisional licence, said his foot slipped on the clutch, causing the vehicle to spring backwards and pin his mother underneath the wheels.

His mother was taken to hospital but was pronounced dead the following morning with severe multiple injuries.

Judge David Ticehurst sitting at Truro Crown Court, said he would "temper justice with mercy," sentencing Foster to 12 months' detention after the teenager pleaded guilty to causing death by careless driving. He was also banned from driving for four years.